Steam-injector.



No. 821,827. PATENTED MAY 29, 1906. W. PENBBRTHY, DEGD. THE AMERICANTRUST AND SAVINGS BANK, ADMINISTRATOR.

STEAM INJECTOR.

APPLICATION FILED JUNE 14, 1905.

avwmvtov UNITED STATES PATENT OFFICE.

INILLIAM PENBERTHY, OF CHICAGO, ILLINOIS; THE AMERICAN TRUST AND SAVINGSBANK ADMINISTRATOR OF IVILLIAM PENBERTHY,

DECEASED.

STEAM-INJECTOR.

Specification of Letters Patent.

Demented May 29, 1906.

To azz whom it may concern:

Be it known that I, WILLIAM PENBERTHY, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Steam-Injectors and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The primary object of this invention is to reduce to a minimumfrictional resistances ordinarily offered by the valves of steam-injectors in the starting and restarting thereof, to simplify theconstruction and lessen the cost of manufacture, and to locate both theoverflow-valves in such relation to the casing that they will be out ofthe way and allow of ready and easy access thereto.

The invention will be hereinafter fully set forth, and particularlypointed out in the claims.

In the accompanying drawings, Figure 1 is a horizontal longitudinalsectional view. Fig. 2 is a section on line 2 2, Fig. 1. Fig. 3 shows aslightly-modified form of the arrangement shown in Fig. 2. Fig. 4 is atransverse section on line 4 4, Fig. 1.

Referring to the drawings, 1 designates the casing 2, the steam-inletopening 3, the water-inlet 4, the overflow-outlet branch, and 5 thedelivery-outlet. The steam-inlet jet 6, the suction or lifting jet 7,and the combining and delivery tube 8 being of any preferred form ofconstruction, further reference thereto is not necessary, all such partsbeing well known in the art. The primary or relief overflow-chamber 9,into which the suction or-lifting jet 7 discharges, is carried laterallyto one side of casing 1that is, into a lateral extension 9" of suchcasing, which extension is formed with an outlet or relief opening 10 inan inner wall or diaphragm 12. The extension 9 is horizontally disposed,as-is also the injector itself, being of the horizontal type. Thisopening 10 is normally closed by a ball-valve 13, which is guided in itsmovements by the annular flange of a removable plug 14, screwed in thetop of the lateral extension 9. The primary or relief overflow escapingthrough opening 10 preferably passes directly to the overflow-outletbranch 4; through a channel (see Fig. 2) without having to pass throughthe main overflowchamber 16, which receives the spill from therelief-port 17 ofthe combining-tube, such outlet branch 4 being,however, in transverse line with the overflow-chamber 16 and not withthe primary overflow, thus reducing the weight and cost of manufacture.This main overflow-chamber 16 is also carried laterally to one side ofcasing 1that is, into the extension -9 and formed with anoverflow-opening 18 in its horizontally-disposed wall or diaphragm 19, aball-valve 20, guided by a plug 21, normally closing such outletopening.The plug 21,- like plug 14, is screwed into the top of the lateralextension. According to the construction shown in Fig. 3 the directchannel 15 is dispensed with and the preliminary overflow, which effectsthe unseating of ball-valve 13, enters the main overflow-chamber 16 andmust unseat ballvalve 20 before it can find its escape to the atmospherethrough the overflow-outlet 4 but as it is the object of my invention toreduce resistances to a minimum I prefer that the primary overflowshould find access to the atmosphere without having to unseat the mainoverflow-valve 20, and hence the preferred arrangement shown in Fig. 2.

The operation of this class of injectors is so well understood in theart that nothing more than a brief reference thereto is necessary. Asbefore stated, the injector is of the horizontal type. When steam isadmitted through steam-inlet jet 6, it passes through the suction orlifting jet 7 and entering chamber 9 will pass into the lateralextension, unseat ball-valve l3, and escape to the atmosphere throughthe overflow-outlet 4, instantly creating a partial vacuum in thewater-inlet chamber contiguous with the inletopening 3. In the formationof the column of Water and condensed steam the overflow from thecombining and delivery tube will be through port 17 into the mainoverflowchamber 16 and thence into the lateral ex tension and to theoverflow-outlet after unseating ball-valve 20. The column beingestablished, both ball-valves will immediately resume their seats overtheir respective overflow-openings.

The advantages of my invention are apparent. It will be seen that byemploying the two ball-valves in a horizontal lnjector the o erationthereof is greatly facilitated, enabling the starting and restarting tobe quickly accomplished. This is especially true by reason of the factthat the primary overflow may find immediate access to the 1 atmospherewithout having to pass through the main overflow-chamber. Then, too, bymounting both valves in the lateral extension the guiding-plugs may bereadily removed when for any purpose access to the valves is desired.Furthermore, I avoid the objection common to so many injectors of havingraised plugs or branches extending from different points of theinjector-casing, since according to my invention the valves occu y butvery little room and are located in a ateral extension which is out ofthe way and to one side of the main casing of the injector.

I claim as my invention- 1. In-a horizontal steam-injector, the cas' inghaving at one side a lateral extension and a primary overflow-chamberextended into said extension, said extension having an inner wall ordiaphragm above said chamber formed with an outlet-opening, the main.

overflow-chamber also extended into said extension, which latter has anoutlet-opening for the main overflow, loosely-mounted ballvalvesnormally fitted overboth of said outlet-openings, and a channel orpassage-way leading from the outlet-opening of the primary overflow toone side of the opening of the main overflow.

2. In a horizontal steam-injector, a casing having at one side a lateralextension, and a primary overflow chamber extended into said extension,said extension having an inner wall or diaphragm above said chamberformed with an outlet-openin'g, the main overflow-chamber also extendedinto said extension, which latter has an outlet-opening for the mainoverflow, loosely-mounted ballvalves normally fitted over both of saidoutlet-openings, the overflow-outlet. branch in transverse line with themain overflow, and a channel leading from said primary overflowoutletdirectly to the main overflow branch.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WILLIAM PENBERTHY.

Witnesses:

C. K. CHAMBERLAIN, A. S. PHILLIPs.

